CVE-2025-13016

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{"bugzilla": {"description": "firefox: Incorrect boundary conditions in the JavaScript: WebAssembly component", "id": "2414083", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414083"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["No description is available for this CVE."], "name": "CVE-2025-13016", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "rhel10/firefox-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-11-11T15:47:14Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-13016\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-13016\nhttps://www.mozilla.org/security/advisories/mfsa2025-88/#CVE-2025-13016"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-20T19:04:05.488065+00:00", "value": {"mitigation_remediation": ["Upgrade to Firefox\u00a0145 or newer, Firefox\u00a0ESR\u00a0140.5 or newer, Thunderbird\u00a0145 or newer, or Thunderbird\u00a0140.5 or newer.", "If an upgrade cannot be applied immediately, disable WebAssembly globally or enforce a policy that blocks execution except in trusted contexts.", "Apply content\u2011security policies to restrict delivery of untrusted WebAssembly modules."], "summary": {"action": "Patch Upgrade", "impact": "Potential memory corruption through buffer overflow"}, "threat_synthesis": {"affected_systems": "Mozilla Firefox and Thunderbird, including ESR versions, are affected in releases older than Firefox\u00a0145, Firefox\u00a0ESR\u00a0140.5, Thunderbird\u00a0145, and Thunderbird\u00a0140.5.", "description_and_impact": "Incorrect boundary checks in the JavaScript: WebAssembly component can lead to out\u2011of\u2011bounds memory accesses, possibly corrupting memory when malicious content is processed. The flaw aligns with buffer overrun issues and improper error handling.", "risk_and_exploitability": "The CVSS score of 7.5 indicates moderate to high risk, while the EPSS score of less than\u00a01% suggests a low exploitation probability and the vulnerability is not listed in CISA KEV. An attacker might cause memory corruption by delivering a WebAssembly module that violates boundaries, thereby affecting the process that loads the module and potentially compromising user data."}}}}, "created": "2025-11-12T12:42:23.709174+00:00", "updated": "2026-04-20T19:15:15.043426+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$firefox", "mozilla$PRODUCT$firefox_esr"]}